Staff AI Engineer at 13 Coins Holdings

Prague, Prague, Czechia -

Full Time

Start Date

Immediate

Expiry Date

12 Aug, 26

Salary

0.0

Posted On

14 May, 26

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

TypeScript, AWS, Agentic AI, LangChain, Mastra, LangGraph, RAG, LLM Orchestration, Distributed Systems, Backend Engineering, Model Evaluation, Prompt Engineering, Fine-tuning, Software Architecture, Financial Analysis, Mentoring

Industry

Description

Your mission About StockStory Index.dev is partnering with StockStory (CNBC / VERSANT) to hire a Senior AI Engineer in Prague. VERSANT is an independent, publicly traded company that brings together powerhouse brands such as CNBC, MS NOW (formerly MSNBC), USA Network, Oxygen, E!, SYFY, and Golf Channel along with dynamic digital and direct-to-consumer brands such as Fandango, Rotten Tomatoes, GolfNow, GolfPass, and SportsEngine. StockStory, now part of CNBC under VERSANT, is building the next generation of AI-powered equity research for individual investors. This is a chance to build products that can shape how millions of consumers understand markets and make investing decisions. We offer the best parts of a startup environment — small team, high ownership, fast execution, and room to experiment — with the backing and stability of VERSANT, an independent publicly traded media company. As an AI engineer, you will work on both an existing AI product with real user impact and greenfield projects with significant room for exploration. The work spans cutting-edge LLMs, large-scale data systems, financial reasoning, and research tooling, with opportunities to apply ideas from functional programming and graph-based systems where they create real advantage. You will be joining a team of exceptional engineers, analysts, and investors working at the intersection of AI and public markets. A particularly rare part of this role is the level of direct access to experienced market professionals, including former hedge fund managers and top-tier analysts, whose insights can directly inform how you think about modeling, signals, and product design. The Role We're looking for a Staff AI Engineer to help build the next generation of AI-powered equity research. This role is for engineers who are excited by taking LLM capabilities beyond prototypes and turning them into robust product systems that deliver real value in production. It is especially well suited to people who enjoy designing end-to-end workflows, shaping technical direction, and building reusable foundations that help multiple teams move faster. You will design, build, and ship LLM-powered systems that integrate into new and existing workflows across the platform, spanning orchestration, retrieval, tool use, evaluation, and operational safeguards. You will also help define the engineering standards and architectural patterns that make these systems reliable, scalable, and maintainable over time. This role sits within a small and growing, high-caliber team where individuals are expected to operate with a high degree of ownership and autonomy, contributing directly to core product, infrastructure, and AI platform decisions while working closely with engineering and senior leadership in a highly collaborative, low-bureaucracy environment with direct access to decision-makers. A genuine interest in investing, public markets, and fundamental business analysis is expected. Your profile What We're Looking For Bachelor's degree in Computer Science or equivalent practical experience 8+ years of experience designing, building, and maintaining software systems Excellent backend expertise in at least one strongly typed language, preferably TypeScript Solid understanding of cloud computing primitives, especially AWS Strong understanding of agentic AI concepts such as tool use, function calling, state machines or graphs, retrieval and reranking, structured outputs, memory, guardrails, and evaluation Experience developing and deploying agentic workflows using frameworks such as LangChain, Mastra, or LangGraph What You'll Do Build end-to-end distributed agentic AI solutions that are reliable and scalable Lead cross-functional initiatives requiring coordination across multiple teams and shared systems Mentor other engineers and define quality standards and best practices Own long-term maintainability, observability, and cost efficiency of AI systems Monitor model quality drift, prompt alignment, alerting, and operational health Desirable Skills & Experience Prior experience leading an AI systems team Experience shipping and operating multiple GenAI or LLM systems in production Hands-on experience debugging scaled LLM systems and participating in incident response Experience building human-in-the-loop evaluation pipelines Experience with RAG, embeddings, and model fine-tuning Experience implementing evaluation suites for agentic systems running in production Location Hybrid — 4 days on-site in Prague, Czech Republic / 1 day remote. Why us? About us Index is a UK-based company providing end-to-end remote-work services, powered by our digital platform. We help leading companies like GoEuro, Vodafone, Venly, YC startups, and 100 more companies to scale their engineering team by finding and managing high-performing tech talent. The company was founded 2019 and headquartered in London. We unite top engineering talent from around the world and connect them with innovative companies seeking high-performing teams. It was co-founded by an Oxford alumnus and tech executive with a track record of building successful global teams and scaling output rapidly. Why Join Index.dev We are officially recognized by the Financial Times as one of Europe’s fastest-growing companies: in 2024 we ranked 29th overall and 6th in IT & Software among the FT 1000. We scale faster than market average — enabling us to offer frequent, meaningful opportunities for those who perform. From Talent Marketplace to Full-Service Software Powerhouse In October 2025 we completed the acquisition of Codemotion — a seasoned, U.S.-based custom software development company with a 60+ strong engineering team, decades of enterprise-project experience, and clients such as NASA, Neom, and MongoDB. This strategic move transforms us from a talent-matching platform into a full-fledged software delivery partner: end-to-end solutions, from MVP to production, including CTO-level leadership, project management, design, QA, and scalable engineering teams. As a result — along with helping hire developers, we’re delivering entire products and complex systems. We now serve clients in 180+ countries, offering broad timezone overlap, flexible staffing models, and a diversity of technical skills and cultural backgrounds. Our growth trajectory ensures that high-performers don’t just onboard — they accelerate. With access to enterprise-level clients, cross-functional teams, and varied domains (FinTech, Blockchain, Healthcare, AI), talent can grow in ways rarely possible in traditional setups. Our Vision & Mission: Where We’re Going Next We are growing fast and have the vision of building the leading software development company in the world. We believe that remote-first, globally distributed engineering teams are the future. Our goals include: 1. Expand into a full end-to-end software delivery partner — delivering complete engineering solutions, from CTO-level leadership to full product development. 2. Attract and serve enterprise-level clients — by strengthening delivery quality, project reliability, and compliance to handle complex, high-stakes projects. 3. Deliver speed, quality, and flexibility at scale — ensuring clients get vetted, ready-to-interview talent and high-performing teams with exceptional turnaround time. 4. Sustain rapid, high-quality growth — continuing our momentum as one of Europe’s fastest-growing tech companies while preserving performance, culture, and delivery excellence. Giving back is part of our DNA. We donate around 10% of the revenue to support vulnerable groups — including children, women, refugees — and invests in education programs for young students and future IT professionals. If you’re motivated by scale, impact, complex projects, and global collaboration, Index.dev is the kind of place where your efforts will be amplified. Here are some reviews from our teammates on -> Glassdoor. You would make an ideal candidate for our company if you are willing to commit to the following: Above Average Principles: Integrity. Respect. Show empathy and respect to others and their feelings; Show others that you care. Extra-Mile. Excellence and work ethics. Ask the question: “What else can I do?”; Reject average, good to pass by. Move Quickly and Be Resourcefulness. Do more with less. Ongoing Learner. Ask the questions: “What coaching do you have for me?” and “What can I do better?“; What is the learning here?. Team Player. Talent wins games, but teamwork and intelligence win championships. Extra Smile. We look to the positive side in every situation. We love what we do every day. Ask the question: “What is good in this?”.

Responsibilities

Design and build scalable, end-to-end agentic AI solutions and LLM-powered systems for equity research. Lead cross-functional initiatives, mentor engineers, and define architectural standards for reliability and maintainability.